* {
            -webkit-tap-highlight-color: transparent;
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            cursor: default;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        .allow-select,
        .section-content p,
        .download-info,
        .installation-step p,
        .device-info p,
        .security-notice p,
        .faq-answer p {
            -webkit-user-select: text;
            -moz-user-select: text;
            -ms-user-select: text;
            user-select: text;
            cursor: text;
        }
        
        :root {
            --deep-blue: #060F1E;
            --mid-blue: #0B2A55;
            --light-blue: #0E4DA4;
            --accent-blue: #1E90FF;
            --accent-teal: #1E90FF;
            --text-white: #EAF1FF;
            --text-gray: #CFE2FF;
            --text-light: #EAF1FF;
            --glass-bg: rgba(11, 42, 85, 0.85);
            --glass-border: rgba(255, 255, 255, 0.22);
            --gradient-primary: linear-gradient(180deg, #060F1E, #0B2A55, #0E4DA4);
            --gradient-secondary: linear-gradient(135deg, #0B2A55 0%, #0E4DA4 100%);
            --gradient-accent: linear-gradient(135deg, #1E90FF 0%, #1E90FF 100%);
            --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
            --section-padding: 5rem 2rem;
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.3);
            --shadow-xl: 0 25px 80px rgba(0, 0, 0, 0.35);
            --shadow-accent: 0 0 40px rgba(30, 144, 255, 0.15);
        }

        html {
            scroll-behavior: smooth;
            font-size: 15px;
        }

        body {
            font-family: 'Manrope', 'IBM Plex Sans', 'Source Sans Pro', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--gradient-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
        }

        h1, h2, h3, h4 {
            font-weight: 500;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--text-light);
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 500;
            letter-spacing: -0.3px;
        }

        h2 {
            font-size: 2.2rem;
            margin-bottom: 2rem;
            position: relative;
            font-weight: 500;
        }

        h2:after {
            content: '';
            position: absolute;
            bottom: -1rem;
            left: 0;
            width: 3.5rem;
            height: 2px;
            background: var(--gradient-accent);
            border-radius: 2px;
        }

        h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            font-weight: 500;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        h4 {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
            font-weight: 500;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        p {
            margin-bottom: 1.2rem;
            color: var(--text-gray);
            font-size: 1.05rem;
            line-height: 1.6;
            font-weight: 400;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .lead-text {
            font-size: 1.15rem;
            line-height: 1.7;
            font-weight: 300;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        a {
            color: var(--accent-teal);
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        a:hover {
            opacity: 0.85;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* ========== HEADER (exactly like about.html) ========== */
        .main-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(6, 15, 30, 0.98);
            backdrop-filter: blur(20px);
            z-index: 1000;
            padding: 0.8rem 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.22);
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .main-logo {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .main-logo .logo-icon {
            font-size: 1.8rem;
            padding: 0.5rem;
            background: rgba(30, 144, 255, 0.12);
            border-radius: 10px;
            border: 1px solid rgba(30, 144, 255, 0.25);
            transition: all 0.3s ease;
        }

        .logo-tagline {
            font-size: 1.2rem;
            color: var(--text-gray);
            margin-top: 0.1rem;
            font-weight: 500;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .main-nav {
            display: flex;
            gap: 1.5rem;
            align-items: center;
        }

        .main-nav a {
            color: var(--text-gray);
            font-weight: 400;
            padding: 0.4rem 0;
            position: relative;
            font-size: 0.95rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-teal);
        }

        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1.5px;
            background: var(--accent-teal);
            transition: width 0.3s ease;
        }

        .main-nav a:hover:after,
        .main-nav a.active:after {
            width: 100%;
        }

        .main-nav i {
            margin-right: 0.4rem;
            font-size: 1rem;
        }

        .login-btn {
            background: #1E90FF;
            color: white;
            padding: 0.6rem 1.2rem;
            border-radius: 8px;
            font-weight: 400;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            text-decoration: none;
            width: 90px;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .login-btn:hover {
            background: #0B2A55;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(30, 144, 255, 0.3);
        }

        .login-btn:active {
            background: #0E4DA4;
            transform: translateY(0);
        }

        .login-btn i {
            font-size: 1rem;
        }

        .sidebar {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 15, 30, 0.97);
            backdrop-filter: blur(20px);
            border-left: 1px solid rgba(255, 255, 255, 0.22);
            z-index: 9999;
            transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 4rem 1.5rem 1.5rem;
            overflow-y: auto;
            box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
        }

        .sidebar.active {
            right: 0;
        }

        .sidebar-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(5px);
            z-index: 9998;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .sidebar-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .sidebar-header {
            margin-bottom: 2.5rem;
            text-align: center;
        }

        .sidebar-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1.5rem;
        }

        .sidebar-icon {
            font-size: 2.5rem;
            color: var(--accent-teal);
            padding: 0.7rem;
            background: rgba(30, 144, 255, 0.15);
            border-radius: 10px;
            border: 1px solid rgba(30, 144, 255, 0.3);
        }

        .sidebar-tagline {
            font-size: 0.9rem;
            color: var(--text-gray);
            margin-top: 0.25rem;
            font-weight: 400;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .sidebar-nav {
            list-style: none;
            margin-bottom: 1.5rem;
        }

        .sidebar-nav li {
            margin-bottom: 0.4rem;
        }

        .sidebar-nav a {
            display: block;
            padding: 0.8rem 1.2rem;
            color: var(--text-gray);
            border-radius: 8px;
            transition: all 0.3s ease;
            font-weight: 400;
            border: 1px solid transparent;
            font-size: 0.9rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            background: rgba(30, 144, 255, 0.1);
            color: var(--accent-teal);
            border-color: rgba(30, 144, 255, 0.2);
            transform: translateX(5px);
        }

        .sidebar-nav i {
            width: 20px;
            text-align: center;
            margin-right: 8px;
        }

        .sidebar-close {
            position: absolute;
            top: 1.2rem;
            right: 1.2rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-light);
            width: 2.2rem;
            height: 2.2rem;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1.1rem;
        }

        .sidebar-close:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: rotate(90deg);
        }

        .mobile-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(6, 15, 30, 0.98);
            backdrop-filter: blur(20px);
            z-index: 1000;
            padding: 0.8rem 1.2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.22);
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .mobile-logo .logo-icon {
            font-size: 1.7rem;
            padding: 0.4rem;
            background: rgba(30, 144, 255, 0.12);
            border-radius: 8px;
            border: 1px solid rgba(30, 144, 255, 0.25);
            transition: all 0.3s ease;
        }

        .mobile-nav-toggle {
            background: rgba(30, 144, 255, 0.12);
            border: 1px solid var(--glass-border);
            color: var(--text-light);
            font-size: 1.1rem;
            width: 2.2rem;
            height: 2.2rem;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            z-index: 1001;
        }

        .mobile-nav-toggle:hover {
            background: rgba(30, 144, 255, 0.18);
            transform: rotate(90deg);
        }
        /* ========== END HEADER ========== */

        .page-hero {
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 9rem 1.2rem 4rem;  /* increased top padding to accommodate fixed header */
            position: relative;
            overflow: hidden;
            background: radial-gradient(ellipse at top, rgba(30, 144, 255, 0.15) 0%, transparent 70%),
                        radial-gradient(ellipse at bottom, rgba(6, 15, 30, 0.8) 0%, transparent 70%);
        }

        .page-hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, #060F1E, #0B2A55, #0E4DA4);
            opacity: 0.5;
            z-index: -1;
        }

        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 144, 255, 0.1) 0%, transparent 70%);
            filter: blur(50px);
            z-index: -1;
            opacity: 0.3;
        }

        .glow-1 {
            top: -150px;
            right: -150px;
        }

        .glow-2 {
            bottom: -150px;
            left: -150px;
            background: radial-gradient(circle, rgba(30, 144, 255, 0.1) 0%, transparent 70%);
        }

        .page-hero-content {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
            animation: fadeInUp 1s ease-out;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .page-title {
            font-size: 2.5rem;
            margin-bottom: 1.2rem;
            color: var(--text-light);
            line-height: 1.1;
            background: linear-gradient(135deg, var(--text-light) 0%, var(--accent-teal) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .page-subtitle {
            font-size: 1.3rem;
            color: var(--text-gray);
            margin-bottom: 2rem;
            font-weight: 300;
            letter-spacing: -0.1px;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .section {
            padding: 5rem 1.2rem;
            position: relative;
        }

        .section-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-secondary);
            opacity: 0.1;
            z-index: -1;
        }

        .section-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .download-options {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .download-card {
            background: var(--gradient-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 18px;
            padding: 2.2rem 1.8rem;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            text-align: center;
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

        .download-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .download-card:hover {
            transform: translateY(-8px) scale(1.02);
            border-color: rgba(30, 144, 255, 0.3);
            box-shadow: var(--shadow-xl), var(--shadow-accent);
        }

        .download-card.coming-soon {
            opacity: 0.6;
        }

        .download-card.coming-soon:hover {
            transform: translateY(-5px) scale(1.02);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .download-icon {
            width: 70px;
            height: 70px;
            background: rgba(30, 144, 255, 0.1);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.8rem;
            border: 1px solid rgba(30, 144, 255, 0.2);
            transition: all 0.3s ease;
        }

        .download-card:hover .download-icon {
            background: rgba(30, 144, 255, 0.15);
            transform: rotate(5deg) scale(1.1);
            box-shadow: 0 0 20px rgba(30, 144, 255, 0.2);
        }

        .download-card.coming-soon .download-icon {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .download-icon i {
            font-size: 2.2rem;
            color: var(--accent-teal);
        }

        .download-card.coming-soon .download-icon i {
            color: var(--text-gray);
        }

        .download-card h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .download-info {
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
        }

        .download-size {
            display: inline-block;
            background: rgba(30, 144, 255, 0.1);
            color: var(--accent-teal);
            padding: 0.5rem 1.2rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(30, 144, 255, 0.2);
            transition: all 0.3s ease;
        }

        .download-card:hover .download-size {
            background: rgba(30, 144, 255, 0.2);
            transform: translateY(-2px);
        }

        .download-card.coming-soon .download-size {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-gray);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .download-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            padding: 1rem 2rem;
            background: var(--gradient-accent);
            color: white;
            border-radius: 12px;
            font-weight: 500;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            cursor: pointer;
            width: 100%;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
            position: relative;
            overflow: hidden;
        }

        .download-btn:before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: left 0.7s ease;
        }

        .download-btn:hover:before {
            left: 100%;
        }

        .download-btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 35px rgba(30, 144, 255, 0.35);
        }

        .download-btn.coming-soon {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-gray);
            cursor: not-allowed;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .download-btn.coming-soon:hover {
            transform: none;
            box-shadow: none;
        }

        .installation-steps {
            margin-top: 3rem;
        }

        .installation-step {
            background: var(--gradient-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 18px;
            padding: 2.2rem 1.8rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

        .installation-step.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .installation-step:hover {
            transform: translateY(-5px);
            border-color: rgba(30, 144, 255, 0.3);
            box-shadow: var(--shadow-lg);
        }

        .step-number {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            background: var(--gradient-accent);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .installation-step:hover .step-number {
            transform: rotate(15deg) scale(1.1);
        }

        .step-content {
            flex: 1;
        }

        .step-content h3 {
            color: var(--text-light);
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .step-content h3 i {
            color: var(--accent-teal);
            font-size: 1.2rem;
        }

        .step-content p {
            color: var(--text-gray);
            font-size: 1.05rem;
            line-height: 1.6;
        }

        .step-content ul {
            margin-left: 1.5rem;
            margin-bottom: 1rem;
        }

        .step-content li {
            margin-bottom: 0.5rem;
            color: var(--text-gray);
            position: relative;
            padding-left: 0.5rem;
            font-size: 1.05rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .step-content li:before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--accent-teal);
            font-weight: bold;
        }

        .device-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .device-card {
            background: var(--gradient-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 18px;
            padding: 2.2rem 1.8rem;
            text-align: center;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

        .device-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .device-card:hover {
            transform: translateY(-8px) scale(1.02);
            border-color: rgba(30, 144, 255, 0.3);
            box-shadow: var(--shadow-lg);
        }

        .device-icon {
            width: 70px;
            height: 70px;
            background: rgba(30, 144, 255, 0.1);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            border: 1px solid rgba(30, 144, 255, 0.2);
            transition: all 0.3s ease;
        }

        .device-card:hover .device-icon {
            background: rgba(30, 144, 255, 0.15);
            transform: rotate(5deg) scale(1.1);
        }

        .device-icon i {
            font-size: 2.2rem;
            color: var(--accent-teal);
        }

        .device-card h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .device-specs {
            list-style: none;
            text-align: left;
            margin-top: 1.5rem;
        }

        .device-specs li {
            color: var(--text-gray);
            margin-bottom: 0.8rem;
            padding-left: 1.8rem;
            position: relative;
            font-size: 1.05rem;
            line-height: 1.6;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .device-specs li:before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-teal);
            font-weight: bold;
            font-size: 1.1rem;
        }

        .security-notice {
            background: rgba(255, 200, 50, 0.05);
            border: 1px solid rgba(255, 200, 50, 0.1);
            border-radius: 18px;
            padding: 2.2rem 1.8rem;
            margin-top: 3rem;
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

        .security-notice.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .security-notice:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 200, 50, 0.3);
        }

        .security-notice h3 {
            color: #ffc832;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .security-notice h3 i {
            font-size: 1.5rem;
        }

        .security-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .security-feature {
            background: rgba(255, 200, 50, 0.05);
            padding: 1.2rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 200, 50, 0.1);
            transition: all 0.3s ease;
        }

        .security-feature:hover {
            transform: translateY(-3px);
            background: rgba(255, 200, 50, 0.08);
        }

        .security-feature h4 {
            color: #ffc832;
            font-size: 1rem;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .security-feature p {
            font-size: 0.95rem;
            margin-bottom: 0;
            color: rgba(255, 200, 50, 0.8);
        }

        .security-notice code {
            background: rgba(0, 0, 0, 0.3);
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-family: 'Courier New', monospace;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: inline-block;
            margin: 0.5rem 0;
            color: #ffc832;
        }

        .faq-section {
            margin-top: 3rem;
        }

        .faq-item {
            background: var(--gradient-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 18px;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.8s ease-out;
        }

        .faq-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .faq-item:hover {
            border-color: rgba(30, 144, 255, 0.2);
            transform: translateY(-3px);
        }

        .faq-question {
            padding: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .faq-question:hover {
            background: rgba(30, 144, 255, 0.05);
        }

        .faq-question h4 {
            color: var(--text-light);
            font-size: 1.1rem;
            margin-bottom: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .faq-question h4 i {
            color: var(--accent-teal);
            font-size: 1.1rem;
        }

        .faq-toggle {
            color: var(--accent-teal);
            font-size: 1.5rem;
            font-weight: 300;
            transition: transform 0.5s ease;
            min-width: 24px;
            text-align: center;
        }

        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.5s ease;
        }

        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 1000px;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-item.active {
            border-color: rgba(30, 144, 255, 0.3);
        }

        .highlight-text {
            background: linear-gradient(135deg, var(--accent-teal) 0%, #1E90FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-weight: 400;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .btn {
            padding: 1rem 2.2rem;
            border-radius: 12px;
            font-weight: 400;
            font-size: 1rem;
            transition: all 0.4s ease;
            cursor: pointer;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            position: relative;
            overflow: hidden;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .btn:before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: left 0.7s ease;
        }

        .btn:hover:before {
            left: 100%;
        }

        .btn-primary {
            background: var(--gradient-accent);
            color: white;
            box-shadow: 0 8px 25px rgba(30, 144, 255, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 35px rgba(30, 144, 255, 0.35);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-light);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
        }

        .btn-secondary:hover {
            background: rgba(30, 144, 255, 0.08);
            transform: translateY(-4px);
            border-color: var(--accent-teal);
        }

        .cta-section {
            text-align: center;
            padding: 6rem 1.2rem;
            background: linear-gradient(135deg, rgba(6, 15, 30, 0.9) 0%, rgba(11, 42, 85, 0.9) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 50% 50%, rgba(30, 144, 255, 0.1) 0%, transparent 70%);
            z-index: 1;
        }

        .cta-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1.8rem;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .cta-section p {
            font-size: 1.15rem;
            margin-bottom: 3rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .cta-buttons {
            display: flex;
            gap: 1.2rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .footer {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 3rem 1.2rem 2.5rem;
            background: rgba(6, 15, 30, 0.7);
            backdrop-filter: blur(10px);
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-section h4 {
            color: var(--text-light);
            font-size: 1.2rem;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.4rem;
            font-weight: 500;
            font-family: 'IBM Plex Sans', 'Inter', sans-serif;
        }

        .footer-section h4:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 2.2rem;
            height: 2px;
            background: var(--accent-teal);
        }

        .footer-section p {
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
            font-size: 1.05rem;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.7rem;
        }

        .footer-links a {
            color: var(--text-gray);
            font-size: 0.95rem;
            transition: all 0.3s ease;
            display: inline-block;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .footer-links a:hover {
            color: var(--accent-teal);
            transform: translateX(5px);
        }

        .footer-contact p {
            margin-bottom: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.95rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .footer-contact i {
            color: var(--accent-teal);
            width: 18px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 1.8rem;
            text-align: center;
            color: var(--text-gray);
        }

        .footer-bottom p {
            margin-bottom: 0.4rem;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .copyright {
            font-size: 0.9rem;
            color: var(--text-gray);
            opacity: 0.7;
            font-family: 'Source Sans Pro', 'Inter', sans-serif;
        }

        .social-links {
            display: flex;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .social-links a {
            color: var(--text-gray);
            font-size: 1.4rem;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            color: var(--accent-teal);
            transform: translateY(-3px);
        }

        @media (min-width: 1025px) {
            .main-header {
                display: flex;
            }
            
            .mobile-header {
                display: none;
            }
            
            .page-hero {
                padding-top: 8rem;
            }
        }

        @media (max-width: 768px) {
            .download-options,
            .device-grid,
            .security-features {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            
            .installation-step {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            
            .step-number {
                align-self: center;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                max-width: 320px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2.2rem;
            }
            
            .download-card,
            .installation-step,
            .device-card,
            .security-notice {
                padding: 2rem 1.5rem;
            }
            
            .download-icon {
                width: 55px;
                height: 55px;
            }
            
            .download-icon i {
                font-size: 1.8rem;
            }
            
            .step-number {
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
            }
            
            .device-icon {
                width: 55px;
                height: 55px;
            }
            
            .device-icon i {
                font-size: 1.8rem;
            }
            
            .cta-section {
                padding: 5rem 1.2rem;
            }
            
            .cta-section h2 {
                font-size: 2rem;
            }
            
            .cta-section p {
                font-size: 1.05rem;
            }
        }

        @media (max-width: 480px) {
            .download-card,
            .installation-step,
            .device-card,
            .security-notice {
                padding: 1.8rem 1.2rem;
            }
            
            .faq-question {
                padding: 1.2rem;
            }
            
            .faq-question h4 {
                font-size: 1rem;
            }
        }